• American Computer Science League

    Registration for the 2025-2026 season

  • How did you hear about ACSL? Please check all that apply.

  • Part 2 of 4

    After registration, when you login to the ACSL Leaderboard, you'll give each team a name and you'll specify whether its score is based on the top 5 students or top 3 students. 5-student teams are limited to 10 students; 3-student teams are limited to 6 students.

  • I have already registered a Senior Division team for this year's contest and this is an additional team.
  • I have already registered an Intermediate Division team for this year's contest and this is an additional team.
  • I have already registered a Junior Division team for this year's contest and this is an additional team.
  • I have already registered a Classroom Division team for this year's contest and this is an additional team.
  • I have already registered a Elementary Division team for this year's contest and this is an additional team.
  • Part 3 of 4

    These materials are available as an electronic download. All materials are copyright protected and are for preparing the students in your school/organization.  They may not be used for any other purpose outside your school/organization and may not be posted online beyond your school/organization.

  • Previous Contests - All questions, programs, and solutions for the Senior, Intermediate, Junior, and Classroom divisions for the specified year(s)
  • The Shorts Collection - All short answer questions and solutions for the Senior, Intermediate, Junior, and Classroom Divisions
  • The Elementary Collection - All questions and solutions for the Elementary Division
  • Part 4 of 4

    You will receive an email after you submit your registration form. It will be a few hours before your account will be live on the ACSL Leaderboard.

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